While Dropbox.com has a very high upload file size limit (300mb), adding this plugin to your site will connect it to your dropbox account BUT it will utilize your hosting resources - and restrictions. So, if you are on a shared hosting plan (like I am) than you are stuck with whatever max file size limit they give you. Siteground is a ridiculous 24mb so no matter what trick I threw at it (php.ini, max_timeout, .htaccess, wp-config.php, wp-admin folder, etc., etc.), none of it worked.
If you could modify your php.ini max file size upload settings, more power to you, but if your host won't allow it, than this plugin (and any other for large file uploading) will NOT work for you because they are all HTTP (web) based. The only way around it is to have them send it to you via FTP software (no file size limit) or through their own method (yousendit, dropbox, google drive, etc).
Hope this saves someone HOURS of research which I had to spend.